Telephone



July 7, 1931. J. o. CADIEUX TLPHONE Filed Jun e' 7. 1930 2 Sheets-Sheet 1 .ly 7, 1931. J. o. CADIEUX 1,813,387

TLPHONE Fi1ed June 7, 1930 2 Shets-Sheet 2 'INVENTOR Patented July 7, 1931 UNITED STATESPATENI orner.

JOSEPH O. CADIEUX, OF MERIDEN, CONNECTICUT; ASSIG-NOR TO CONNECTICUT TEI.E-

PHONE & ELECIRIC CORPORATION, OF MERIDEN, CONNECTICUT, A CORPORATION OIE DELAWARE TLPHONE Application filed June 7,

My invention relates Particularly to what are somet1mes termed apartment house telephones.

. .1 One object is to provide a construction which can be readily installed and wired.

Another object is to provide a construction Which is compact and yet capable of connection and use in a variety of different ways.

Another objeot is toprovid a construc tion of the character describ6d which can be econoniically made and assembled.

Another object is to provide a construction of the above character which can be readily plugged into and removed from wall connections without the use of binding posts, screws, or the like.

Another object is to provide a construction which is particularly adapted for embodiment in a metal'casing.

30 In the preferred fornfl the apparatus comprises a casing or housing composed of two parts, nannely, a wall or Supporting back member and a front or detachable body member. The baek member carries a series of sta- 2 tionary jaws or sockets which are electrically connected to the house wiring system,

In the form herein sho-wn the casing con- 7 sists of a body portion adapted to be mounted up0n or embedded in a wall and a frontplate carrying an insulating block with the transmitter, receiver, bell and push button connections and plug bladcs adapted to be inserted into corresponding sockets supported in the body of the casing.

The invention is broadly claimed by my Patent #1,717,091.

Fig. 1 is a front view of the main body of the casing With the circuit terminals and plug in sockets.

Fig. 2 is a rear view of the front plate with its attached parts.

Fig. 3 is a horizontal section and end view of the assembled parts of the apparatus,- but looking upwardly.

Fig. 4 is a fragmentziry vertical sectio1ial suitable manner.

1930. Serial No. 459,807.

may be of steel or other' suitable material and has a cover portion 11 which maybe secured in place hy screws 12 passing through keyhole openings 13 into the body of the casing.

The front plate or Wall plate 14: may be of suitable m'aterial such as sheet metal of suitable design and adapted to be secured in place by screws 15 which pass through the front plate into the screw Seats 16 in the lugs 17. V A The insulating block 18 is suitably secured to the back of the front plate 14 and provided with recesses 19 corresponding with the lugs 17 so as to serve as alin1ng means for properly positioning the front plate and attached parts 'with respect to the wall box. and the front member 'carries the translnit- One or more signal bells 20 are pref'erably provided and niounted upon the front plate and adapted to be actuated by# suitable electro-maghetic devices 21 of the usual character.

A transmitter may be of any suitable char- 'acter as for instance the microphone 22 With a diaphragm 23 and mouth piece 24 ported within the front plate 14.

The receiver 25 may be of any suitabletype and adapted to be hung on the hook26 of a suitable switch 27, the latter being secured to the rear of the inSulating block 18 in any The construction of the transmitter and receiver may be embodiedin a combination hand instrument as is cus tommy in telephoneconstruction and adapted to be suspended from the hook 26 and actuate the switch 27 in the usual mahner.

Constructions of this character are usually provided with One or more push butto-n switches for si gnaling the janitor, releasing the front door catch of the apartment, etc.

' Such a switch Would have a stationary contact 30 and a spring finger contact member 31 secured for instance by a screw 32 at the rear of the insulating block 18. Such a switch may be conveniently operated by the push button 33 Which slidcs through the block 18 on the front plate 14. The plat-e 34 serves as an anchorage for the screw 32.

To the back of the insulating block 18 are secured a number of blades 35 electrically connected to the respective parts of the transmitter, receiver, bell and push buttons. A convenient method of supporting these blades is shown in Fig. 4 where the blade 35 is secured by a tubular rivet 36 to the plate 34.

An insulating block 37 mounted within the wall body or box of the casing may be supported by hangers 38 which are secured by screws 39. Upon this bloc]: 37 is mounted a series of spring sockets 41 corresponding with the plug-in blades 35. Each of these sockets has one or more spring aws for appro priate yielding and sliding connection With the blades and is secured in place for instance by the screw 42. Each of tbese sockets 41 has a terminal plate 43 and binding screw 44 for attachment of the conductors which are led into the box 10 in any suitable manner.

The various parts of the transmitter, receiver, etc. are, as above stated, connected to the respective plug-in blades 35 so that they can all be plugged-in to the xvall sockets simultaneously for convenience in installation and so that the wall plate and attached instrument parts may be readily removed when desired.

In the construction shown in Figs. 5 and 6 the casing 50 is more particularly intended to be mounted on the outside of the wall and contains an insulating block 51 With terminal sockets 52.

The front plate 53 carries an insulating block 54 on which the various instruments are mounted such as the bell 55, the transmitter 56, the hook switch 57 and receiver hook 58 and push button switch 59. This block 54 also carries a row of plug-in blades 60 connected to the respective electrical instruments and adapted to engage the apparatus contact jaws 52 which are mounted in the body of the casing 50.

It Will be seen from the foregoing that in each form of the invention herein illustrated the wall box can be installed and wired into the house line very readily, even before the face plate or the transmitter and receiver, etc. are available. After the wiring in the house and connections through the sockets such as 41 and 52 are completed, the front part of the casing with the attached instruments is readily inserted and secured in place without necessitating any of the usual wiring to be done.

. I claim:

1. In a telephone instrument, a box adapted to be secured to a wall, an insulating support carried thereby, circuit terminals on said support, a front plate detachably connected to the box, an insulating block carried by the plate and projecting rearwardly there from, a hook switch carried by said insulating block, a transmitter and a receiver connected to the hook switch, and automatically engaging contacts carried by said insulating support and said block and connected to said transmitter, receiver and hook switch.

2. In a telephone, a casing having a box and a front plate, circuit terminals mounted in said box, the front plate being detachably connected to the box and having transmitter, receiver and hook switch connections and automatically engaging contacts carried by said plate and box and connected respectively to said transmitter, receiver and hook switch. 7

3. A telephone instrument comprisng a box having a series of terminals and contacts, a front plate, an insulating block carried thereby and having contacts adapted to said other contacts, atransmittcr and receiver connected to said block, said box and said block having interfitting aligning members coacting with each other during the connection of the contacts.

4. A telephone instrument comprising a wall box having a series of contacts, a front insulating body having contacts adapted to the other contacts, a transmitter and receiver carried by the insulating body, said box and said body having interfitting aligning flanges and grooves coacting with each other in advance of the connection of the contacts.

5. A telephone instrument comprising a box member having a row of contacts, a front member having contacts adapted to said box member contacts, a transmitter and a receiver, a switch carried by the front member and connected to the transmitter and receiver, said box membcr and said front member having interfitting aligning members coacting with each other during the connection of the contacts and means for securing the front and box members together.

6. A telephone instrument comprising a box having a series of sockets, a front plate and insulating body having contacts adapte-d to fit in said sockcts, a transmitter and receiver having terminale carried by the insulating body, said box and said body having interfitting aligning members coacting With each other in advance of the insertion of the contacts into the sockets.

7. A telephone comprising a box having a series of sockets, a front plate and insulat ing bloc]: having contacts adapte-d to said sockets, a bell, push buttons, a transmitter .and having receiver terminals carried by the block, said box and said block haVing interfitting aligning members coacting with each other during the insertion of the contacts into the sockets and means for securing the plate and box together.

8. In a telephone instrument, a box adapted to be secured t0 a wall, an insulating block carried thereby, circuit terminals on sad block, a front plate detachably connected to the box and having an insulating block, a signal bell, a transmiater, a receiver and a hook sWitch having terminals carried by sad insulating bock on said plate and automatically engaging contacts carried by said insulating bloeks and connected respectively to said bell transmitter, receiver and h00k switch.

JOSEPH O. CADIEUX. 

